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Good to hear I don't have to take the fenders off to do this. That said, I'm not seeing those drains yet. Can you tell me exactly where to look? I assume up under the fender somewhere, but I haven't spotted it yet.
Found the drains. Tested them and water runs freely out of both of them. Also poured water into the wiper cavities. That water also comes out of the drains; none into the cab. There's plenty of evidence of water coming into the cab from under the dash from the rain, but not from my testing. I'll have to take it outside and run the hose on it for more volume. Any more suggestions would be appreciated.
Probably windshield rubber seal. even the new ones are a poor seal. it will also cause the floor to rust out if it collects under rubber mat or carpet., which is probably what it is doing.
It has been collecting under the mat. I've stripped everything out of the cab and as soon as I get the leak fixed, I'm covering with Lizard Skin. Brand new windshield BTW.